Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 127
110 MOLAE DYNAMICS. Exercises. 1. a. When is a machine said to gain intensity of force ? 6. Whenis it said to gain speed ? 2. a. How is intensity of force gained by the use of a machine ?6. How is speed gained by the use of a machine ? 3. a. What is mechanical advantage ? 6. Give a rule by which the … Fig. 72. mechanical advantage that may be gained by any machine may becalculated. 4. Energy is applied to a machine at the rate of 250 ft. lbs. per minuteand it transmits 200 ft. lbs. per minute. What is its efBciency ? 5. Fig. 72 represents a pile-driver, a. How can the energy or thework which the…
Physics
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